﻿using System;

class GreatestFive
{
    static void Main()
    {
        Console.Write("Please enter first number: ");
        string consoleInput = Console.ReadLine();
        int first = int.Parse(consoleInput);
        Console.Write("Please enter second number: ");
        consoleInput = Console.ReadLine();
        int second = int.Parse(consoleInput);
        Console.Write("Please enter third number: ");
        consoleInput = Console.ReadLine();
        int third = int.Parse(consoleInput);
        Console.Write("Please enter fourth number: ");
        consoleInput = Console.ReadLine();
        int fourth = int.Parse(consoleInput);
        Console.Write("Please enter fifth number: ");
        consoleInput = Console.ReadLine();
        int fifth = int.Parse(consoleInput);

        if (first >= second && first >= third && first >= fourth && first >= fifth)
        {
            Console.WriteLine("The biggest number is {0}.",first);
        } else if (second >= first && second >= third && second >= fourth && second >= fifth)
        {
            Console.WriteLine("The biggest number is {0}.",second);
        }
        else if (third >= first && third >= second && third >= fourth && third >= fifth)
        {
            Console.WriteLine("The biggest number is {0}.", third);
        }
        else if (fourth >= first && fourth >= second && fourth >= third && fourth >= fifth)
        {
            Console.WriteLine("The biggest number is {0}.", fourth);
        }
        else if (fifth >= first && fifth >= second && fifth >= third && fifth >= fourth)
        {
            Console.WriteLine("The biggest number is {0}.", fifth);
        }
    }
}

